One of today's most innovative forms of sustainable farming is old. Like, really, really old. Aztec Empire old: chinampas.
With all the focus we put on technology, it's easy to believe that sustainability is a new-age idea. Scientists are frantically trying to develop something to save the world from our recent mistakes — the pollution of the Industrial Revolution, spills from any number of oil companies, and the human-made climate change that scientists only began to notice in the late 1900s.
In reality, one of the most innovative farming solutions has been here all along. Sustainable farming isn't a 20th century invention. It's something the Aztecs started doing centuries ago called chinampas.
The Aztecs used stunning floating gardens — otherwise known as chinampas — to grow their crops without harming the environment.
Photo by Karl Weule/Wikimedia Commons.
Chinampas were created by piling mud and decaying plants into small stationary islands on top of which the farmers would sow maize, beans, chilies, squash, tomatoes, and greens. Farmers would also grow the colorful flowers used in a variety of their ceremonies. To stabilize the islands, sturdy reeds were bound together and used to both border each chinampa and to help anchor it to the ground.
The dredging of the mud cleared the way for canals and naturally reinvigorated the nutrients in the soil that fed their crops. The resulting system of canals and gardens created a habitat for fish and birds, which helped maintain the health of the ecosystem and also provided additional sources of food.
The chinampas didn't harm the environment — they enhanced it.
"Floating Gardens" drawing by Internet Archive Book Images/Flickr.
This wasn't just a feat of incredible gardening — chinapas took a lot of complicated work to create.
Chinampas are sustainable, but they aren't self-maintained. Farmers had to construct a series of systems and processes to keep their people and the land healthy. Drainage systems were added to avoid flooding during the rainy season.
To fertilize the gardens, they developed a waste system to collect human excrement from the cities and spread it over their crops. The result was more than just flourishing crops: The chinampas actually helped prevent waste from entering and poisoning the water supply.
The fact that Aztecs found a way to turn unworkable swampland into a flourishing garden is an accomplishment in itself. Even more impressive is the amount of organized manpower, planning, and utilization of their resources required to make their idea a reality.
A chinampa in Mexico City. Photo by Emmanuel Eslava/Wikimedia Commons.
So don't call it a comeback. Chinampas have been here for years.
They're still in place around Mexico City, where they're both a tourist attraction and a working farm maintained by the locals. Other cities and countries have picked up on the chinampa idea, too — you can find them on the Baltimore waterfront and even cleaning up New York's polluted Gowanus Canal.
Some ecological companies have even taken elements of the Aztecs' methods and used it to create new technology that resembles the ancient version of the floating gardens. The sustainability benefits still appeal to modern gardeners — especially since chinampas can grow plants, clean and conserve water, and don't require large swaths of land.
A modern iteration of the Aztecs' original chinampa method. Photo by EZGrow Garden.
The success of chinampas is a testament to the fact that sometimes the most innovative solutions don't involve looking to the future, but to the past.
The incredible efficiency of this indigenous gardening method serves as a reminder that sustainability doesn't have to be expensive or rely on the most advanced technology available to us today.
Sometimes, the best thing to do is to look backward — toward the people who figured out how to do it right the first time.
A Generation Jones teenager poses in her room.Image via Wikmedia Commons
An office kitchen.via 
An angry man eating spaghetti.via 
An Irish woman went to the doctor for a routine eye exam. She left with bright neon green eyes.
It's not easy seeing green.
Did she get superpowers?
Going to the eye doctor can be a hassle and a pain. It's not just the routine issues and inconveniences that come along when making a doctor appointment, but sometimes the various devices being used to check your eyes' health feel invasive and uncomfortable. But at least at the end of the appointment, most of us don't look like we're turning into The Incredible Hulk. That wasn't the case for one Irish woman.
Photographer Margerita B. Wargola was just going in for a routine eye exam at the hospital but ended up leaving with her eyes a shocking, bright neon green.
At the doctor's office, the nurse practitioner was prepping Wargola for a test with a machine that Wargola had experienced before. Before the test started, Wargola presumed the nurse had dropped some saline into her eyes, as they were feeling dry. After she blinked, everything went yellow.
Wargola and the nurse initially panicked. Neither knew what was going on as Wargola suddenly had yellow vision and radioactive-looking green eyes. After the initial shock, both realized the issue: the nurse forgot to ask Wargola to remove her contact lenses before putting contrast drops in her eyes for the exam. Wargola and the nurse quickly removed the lenses from her eyes and washed them thoroughly with saline. Fortunately, Wargola's eyes were unharmed. Unfortunately, her contacts were permanently stained and she didn't bring a spare pair.
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Since she has poor vision, Wargola was forced to drive herself home after the eye exam wearing the neon-green contact lenses that make her look like a member of the Green Lantern Corps. She couldn't help but laugh at her predicament and recorded a video explaining it all on social media. Since then, her video has sparked a couple Reddit threads and collected a bunch of comments on Instagram:
“But the REAL question is: do you now have X-Ray vision?”
“You can just say you're a superhero.”
“I would make a few stops on the way home just to freak some people out!”
“I would have lived it up! Grab a coffee, do grocery shopping, walk around a shopping center.”
“This one would pair well with that girl who ate something with turmeric with her invisalign on and walked around Paris smiling at people with seemingly BRIGHT YELLOW TEETH.”
“I would save those for fancy special occasions! WOW!”
“Every time I'd stop I'd turn slowly and stare at the person in the car next to me.”
“Keep them. Tell people what to do. They’ll do your bidding.”
In a follow-up Instagram video, Wargola showed her followers that she was safe at home with normal eyes, showing that the damaged contact lenses were so stained that they turned the saline solution in her contacts case into a bright Gatorade yellow. She wasn't mad at the nurse and, in fact, plans on keeping the lenses to wear on St. Patrick's Day or some other special occasion.
While no harm was done and a good laugh was had, it's still best for doctors, nurses, and patients alike to double-check and ask or tell if contact lenses are being worn before each eye test. If not, there might be more than ultra-green eyes to worry about.